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15 results for “sedimentary rocks”

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zenodo44/100

Factual Report on XRF Analysis Conducted on Bulk Sedimentary Rock Samples from the Mesohellenic Trough

Factual Report on XRF Analysis Conducted on Bulk Sedimentary Rock Samples from the Mesohellenic Trough – Project: PilotStratergy   Analysis date: 30.04.2024 Report date: 02.05.2024, Revision date: - Written by: Christos L. Stergiou, Geologist, PhD Reviewed by: Pavlos Tyrologou, Geologist, PhD Advice also: Previous factual report files “Report_SEM_Round1_Bulk samples.docx” and “Report_XRD_PilotStrategy03.04.2024.docx” for additional information on the mineralogy of the samples included in this report.   1. Materials and Methods Three (3) sedimentary rock samples originating from the Tsotyli (sample Tsot-1; marly SANDSTONE), Eptachori (sample Ept-2; fine GREYWACKE) and Pentalofos (sample Pent-3; greywacke) Formations of the Mesohellenic Trough were powdered and analyzed by X-ray fluorescence (XRF) to determine their mineralogical composition. The samples were field collected by hummer and obtained as rock chips. Pulps produced from the rock chip samples were formed into pressed pellets by mixing 2.4 g of the binder CEREOX® with 9.6 g of rock pulp (i.e. sample-to-wax binder ratio of 4:1). The mixed material was homogenized in a mechanical mixer working at 24 rpm for 15 minutes and then pressed at 5 kbr (Fig. 2). The XRF analysis was performed using Bruker S4-PIONEER with a wavelength-dispersive X-ray fluorescence (WDXRF) analytical system at the Department of Mineralogy-Petrology-Economic Geology, School of Geology, Aristotle University of Thessaloniki. The spectrometer uses an Rh lamp and a system of 5 crystals: LIF200, LIF220, LIF420, XS-55, and PET. It also has two detectors: a gas proportional counter and a scintillation counter. The X-ray beam was used at its maximum energy of 50-60 kV. The element lines that were measured were the Ka and La lines, depending on the element. The method includes corrections for overlaps and matrix effects. Analytical results are presented in Table 1, while major conclusions after XRF analysis are presented below by taking into consideration conclusions previously made after XRD and SEM-EDS analysis. Previous published investigations on these samples include geomechanical and petrophysical methods for the evaluation of the parent sedimentary formations to capture and store CO2 (Tyrologou et al. 2023).     Table 1. Bulk geochemical analyses of major and minor elements for the analyzed samples Tsot-1, Ept-2 and Pent-3 from the Mesohellenic Trough.   <div> <table> <tbody> <tr> <td> Element </td> <td> Tsot-1 </td> <td> Ept-2 </td> <td> Pent-3 </td> </tr> <tr> <td> wt.% </td> <td>   </td> <td>   </td> <td>   </td> </tr> <tr> <td> SiO2 </td> <td> 34.85 </td> <td> 36.25 </td> <td> 15.49 </td> </tr> <tr> <td> Al2O3 </td> <td> 7.18 </td> <td> 6.61 </td> <td> 2.9 </td> </tr> <tr> <td> Fe2O3 </td> <td> 2.66 </td> <td> 3.32 </td> <td> 1.22 </td> </tr> <tr> <td> CaO </td> <td> 30.27 </td> <td> 25.61 </td> <td> 42.42 </td> </tr> <tr> <td> MgO </td> <td> 4.23 </td> <td> 7.23 </td> <td> 5.98 </td> </tr> <tr> <td> Na2O </td> <td> 1.04 </td> <td> 0.74 </td> <td> 0.39 </td> </tr> <tr> <td> K2O </td> <td> 2.22 </td> <td> 1.39 </td> <td> 0.94 </td> </tr> <tr> <td> MnO </td> <td> 0.11 </td> <td> 0.11 </td> <td> 0.03 </td> </tr> <tr> <td> TiO2 </td> <td> 0.32 </td> <td> 0.39 </td> <td> 0.13 </td> </tr> <tr> <td> P2O5 </td> <td> 0.08 </td> <td> 0.1 </td> <td> 0.06 </td> </tr> <tr> <td> LOI </td> <td> 16.79 </td> <td> 17.89 </td> <td> 30.3 </td> </tr> <tr> <td> Total </td> <td> 99.75 </td> <td> 99.64 </td> <td> 99.86 </td> </tr> <tr> <td> ppm </td> <td>   </td> <td>   </td> <td>   </td> </tr> <tr> <td> Ba </td> <td> 189 </td> <td> 149 </td> <td> 66 </td> </tr> <tr> <td> Co </td> <td> 7.0 </td> <td> 13 </td> <td> 4.0 </td> </tr> <tr> <td> Cr </td> <td> 749 </td> <td> 1,680 </td> <td> 512 </td> </tr> <tr> <td> Cu </td> <td> 14 </td> <td> 23 </td> <td> 7.0 </td> </tr> <tr> <td> Ni </td> <td> 112 </td> <td> 221 </td> <td> 78 </td> </tr> <tr> <td> Rb </td> <td> 192 </td> <td> 95 </td> <td> 82 </td> </tr> <tr> <td> Sc </td> <td> bdl </td> <td> bdl </td> <td> bdl </td> </tr> <tr> <td> Sr </td> <td> 298 </td> <td> 342 </td> <td> 242 </td> </tr> <tr> <td> V </td> <td> 650 </td> <td> 990 </td> <td> 306 </td> </tr> <tr> <td> Zn </td> <td> 31 </td> <td> 38 </td> <td> 15 </td> </tr> <tr> <td> Zr </td> <td> 100 </td> <td> 113 </td> <td> 54 </td> </tr> </tbody> </table> </div> *LOI = Loss of ignition, bdl = below detection limit.   5. Conclusions The XRF analysis confirms suggestions and conclusions made on previously acquired SEM-EDS and XRD analytical results focusing on bulk samples obtained by hammering from marly SANDSTONE (Tsot-1) and greywacke (Ept-2, Pent-3) originating from the Tsotyli, Eptachori and Pentalofos Formations of the Mesohellenic Trough (Fig. 1). Bulk geochemical analysis reveals that calcium and silica are the most enriched elements (Table 1). Sample Tsot-1 (24.85 wt.% SiO2) is slightly siliceous in composition, sample Epth-2 (36.25 wt.% SiO2) is dominantly siliceous, while sample Pent-3 is dominantly calcareous in composition (42.42 wt.% CaO, Table 1). These results are complementary to the semi-quantitative estimates obtained by XRD analysis (cf. Report_XRD_PilotStrategy03.04.2024.docx). In sample Tsot-1, calcite content is 30 wt.%, while quartz (29 wt.%) and albite (19 wt.%) percentages sum to 50 wt.%, supporting the siliceous profile acquired by XRF. In sample Ept-2, quartz (37 wt.%) is the dominant mineral phase followed by calcite (29 wt.%), while in sample Pent-3, calcite (41 wt.%) is the more enriched mineral phase, supporting the obtained geochemical results where SiO2 is 36.25 wt.% in sample Ept-2 and CaO is 45.42 wt.% for sample Pent-3. In addition, the geochemical results support the suggested level of maturity of the analyzed samples with Etp-2 showing the highest and Pent-3 the lowest maturity. Finally, sample Ept-2 shows the highest enrichment in minor elements, including 1,680 ppm of Cr and 990 ppm of V (Table 1). Relative enrichments in these trace elements, as well as in Co, Cu, Ni and Zn could be related to the highest incorporation of detrital material related to the ophiolitic basement rocks of the Mesohellenic Trough. Variations in trace elements may be associated with minor mineral phases not detected by the XRD analysis and the SEM-EDS examination of bulk samples. The study of thin-polished sections under a plane polarized and an electron scanning microscope shall clarify the mineral composition of the samples and conclude the mineralogical and geochemical investigation.   6. References Tyrologou, Pavlos, et al. (2023). Progress for carbon dioxide geological storage in West Macedonia: A field and laboratory-based survey." Open Research Europe 3. https://doi.org/10.12688/openreseurope.15847.2

opencc-by-4.0May 2024View details →

zenodo40/100

Major and trace bulk sample and micro-XRF geochemistry, carbon and oxygen stable isotope compositions of magmatic and sedimentary rocks from Hovedøya Island, Oslo fjord, Norway.

This data set reports on the methodologies and results of geochemical analysis carried out on samples of magmatic rock, calcite and sedimentary rocks of Hovedoya Island, Oslo fjord, Norway, in the framework of the publication by Poppe et al. (2020; Geochemistry, Geophysics, Geosystems; <a href="https://doi.org/10.1029/2019GC008685">https://doi.org/10.1029/2019GC008685</a>). The major and trace element bulk sample geochemical analysis was carried at the Laboratoire G-Time, Université Libre de Bruxelles, Brussels (V. Debaille), the micro-XRF mapping and line scanning, was carried out at the laboratory of the Analytical and Environmental Geo-Chemistry (AMGC) group at the Vrije Universiteit Brussel (VUB), Brussels (N.J. de Winter, S. Poppe) and the stable isotope composition analysis was carried out as well at the AMGC laboratory (S. Poppe, S. Goderis), supervised by P. Claeys and M. Kervyn, in collaboration with P. Boulvias.  Data sheets are provided in .csv or .xlsx format and compressed folders containing .TIF images of µXRF elemental maps are attached. This data set also contains the complete data sets obtained for the construction of calibration curves for µXRF line scan analysis of rock samples of magmatic composition at the AMGC laboratory at VUB.

opencc-by-4.0Jan 2020View details →

zenodo40/100

Text-fig. 3. Distribution of main types of volcanoes in the NearShore Volcanic Belt of Eastern Sikhote-Alin' (Eocene–Neogene). 1 – Central volcanoes (partly preserved); 2 – Central volcanoes (destructed); 3 – Shield and gentle sloping volcanoes with a dolerite or trachy-basaltic neck on the top; 4 – Lava and scoria cones; 5 – Pyroclastic, tuffaceous coarse- and fine-grained terrigenous sedimentary rocks, partly with plant-bearing levels; 6 – Eruption centers of plateau-basalts and the direction of lava flows; 7 – Main Late Cenozoic basaltic plateaus; 8 – Fumarol fields; 9 – Hot springs. in Mid-Latitude Palaeogene Floras Of Eurasia Bound To Volcanic Settings And Palaeoclimatic Events - Experience Obtained From The Far East Of Russia (Sikhote-Alin') And Central Europe (Bohemian Massif)

Text-fig. 3. Distribution of main types of volcanoes in the NearShore Volcanic Belt of Eastern Sikhote-Alin' (Eocene–Neogene). 1 – Central volcanoes (partly preserved); 2 – Central volcanoes (destructed); 3 – Shield and gentle sloping volcanoes with a dolerite or trachy-basaltic neck on the top; 4 – Lava and scoria cones; 5 – Pyroclastic, tuffaceous coarse- and fine-grained terrigenous sedimentary rocks, partly with plant-bearing levels; 6 – Eruption centers of plateau-basalts and the direction of lava flows; 7 – Main Late Cenozoic basaltic plateaus; 8 – Fumarol fields; 9 – Hot springs.

opencc-by-4.0Nov 2009View details →

zenodo40/100

Text-fig. 3. Schematic section through the Żyttawa (Zittau) Basin, on the Czech and Polish boundary; Hrádek n. Nisou and Turów parts of the basin. Explanation of the symbols. 1 – Overlying strata with the upper coal seam, 2 – middle and lower strata with the coal seam (Miocene), 3 – first sedimentary setting with basal coal seam (Miocene / Oligocene), 4 – alcalic volcanism (Tertiary), 5 – Upper Cretaceous deposits, 6 - underlying rocks of the basin. (Adapted after Václ 1967, Václ and Čadek, 1962, modified). in Some Monocot Pollen Taxa From The Lower Miocene Basal Coaly Deposits Of The Czech And Polish Parts Of The Żytawa (Zittau) Basin

Text-fig. 3. Schematic section through the Żyttawa (Zittau) Basin, on the Czech and Polish boundary; Hrádek n. Nisou and Turów parts of the basin. Explanation of the symbols. 1 – Overlying strata with the upper coal seam, 2 – middle and lower strata with the coal seam (Miocene), 3 – first sedimentary setting with basal coal seam (Miocene / Oligocene), 4 – alcalic volcanism (Tertiary), 5 – Upper Cretaceous deposits, 6 - underlying rocks of the basin. (Adapted after Václ 1967, Václ and Čadek, 1962, modified).

opencc-by-4.0Dec 2008View details →

zenodo40/100

Limestone and other sedimentary rock catapult balls: Measurement aspects and dating.

Dataset linked to the paper:  Highlighting the Role of Artillery from Massalia Archaeometric Study of Limestone catapult Balls Discovered in Mediterranean Gaul (Early 2nd – mid 1st century BC), by Dominic Vallières, François Fournier, Pierre Rochette, Lionel Marié, to be published in Babesch vol. 100 in 2025.

opencc-by-4.0Oct 2024View details →

zenodo36/100

Effect of Strain Amplitude on Static and Dynamic Mechanical Properties of Tight Sedimentary Rocks: An Experimental Study

We perform increasing-amplitude triaxial unload cycling tests on three tight sedimentary rocks to investigate the strain-dependent mechanical properties.

opencc-by-4.0Nov 2020View details →

zenodo36/100

Oscillatory Flow Testing Data Collected at Field Site for Research in Fractured Sedimentary Rock (FSR)^2

This dataset contains raw and processed pressure data collected in 2019 during oscillatory flow testing experiments at the Field Site for Research in Fractured Sedimentary Rock (FSR)^2 near Madison, WI. The included ReadMe file describes the data and code used in data processing. The companion processing and analysis code is included as a separate upload (doi:10.5281/zenodo.6584777)

opencc-by-3.0-usMay 2022View details →

zenodo32/100

Lithofacies characteristics and controlling factors of fine-grained sedimentary rocks in the Lower 1st Member of the Shahejie Formation in northern Lixian Slope of Raoyang Sag, China

The data used in the article

opencc-by-4.0Sep 2022View details →

zenodo32/100

Chemical composition data of sedimentary rocks from the Permian-Triassic boundary and Cretaceous oceanic anoxic events

Bulk chemical composition data of sedimentary rocks from the Permian-Triassic boundary and Cretaceous oceanic anoxic events. This is a supplementary dataset for “Geochemical variations in sedimentary records of oxygen-depleted marine environments in representative geological periods: New perspectives from a multivariate statistical technique” by Moei Yano et al.

opencc-by-4.0Aug 2024View details →

zenodo32/100

Supporting-Information - Text of Tectonic burial of sedimentary rocks drives the building of juvenile crust of magmatic arc

Text S1 describes the analytical methods used in this study. Figure S1 is the X-ray mappings of garnets from the pelitic migmatites. Table S1 is the chemical compositions of garnet from the studied pelitic migmatites. Table S2 is representative chemical compositions of other minerals from the pelitic migmatites. Table S3 shows the whole rock Sr–Nd isotopes and major element compositions of the studied pelitic migmatite, the Late Cretaceous arc magmatic rocks and Neo-Tethyan ophiolites. Table S4 is zircon U–Pb dating and trace element data. Table S5 shows the zircon Lu–Hf and oxygen isotopic data.

opencc-by-4.0Dec 2020View details →

zenodo32/100

U-Pb, Lu-Hf, and O in zircon from igneous and sedimentary rocks from the Ellsworth Mountains, West Antarctica

This dataset includes U-Pb, Lu-Hf, and O analyses of zircons from two igneous rocks: sample EHD0701A (79°57'47.43"S, 82°56'58.32"W) and sample EHD0305A (80°03'00.87"S, 82°59'07.91"W). EHD0701A is a foliated porphyritic hornblende micro-diorite, while EHD0305A is a basaltic andesite. Additionally, it contains Lu-Hf and O analyses of detrital zircon grains from ten meta-sedimentary samples: 13EG-01, 13EG-02, EHD2302A, EHD0801A, 13EG-05, EHD1705A, EA6, EAM1001B, 13EG-15, and 13EG-10. The coordinates for these samples and U-Pb data are published in Castillo et al. (2017). Zircon separation and analysis were conducted at the Australian National University in Canberra, Australia. Castillo, P., Fanning, C.M., Fernandez, R., Poblete, F., Hervé, F. 2017. Provenance and age constraints of Paleozoic siliciclastic rocks from the Ellsworth Mountains in West Antarctica, as determined by detrital zircon geochronology. GSA Bulletin 129, 1568-1584.

opencc-by-4.0Oct 2023View details →

zenodo28/100

Dataset of "Machine Learning Uncovers Provenance of Source Rocks for Volcano-Sedimentary Lithium Mineralizations in South China"

Open the record for dataset details and reuse information.

opencc-by-4.0Oct 2024View details →

zenodo28/100

Provenance and Tectonic Implications of Upper Neoproterozoic-Lower Paleozoic Sedimentary Rocks in the Yidun Terrane, Eastern Tibetan Plateau

The Yidun Terrane, sandwiched between the Qiangtang and Songpan-Ganze terranes, hosts important information in the tectonic evolution of the eastern Tibetan Plateau. However, its tectonic link with adjacent terranes and East Gondwana remains equivocal. Here, we present detrital zircon U-Pb-Hf isotope data from the upper Neoproterozoic-lower Paleozoic clastic rocks in the Yidun Terrane. The results show that detrital zircons from the Neoproterozoic rocks are mainly of ca. 821 – 890 Ma, 1714 – 1977 Ma, and 2317 – 2520 Ma, with εHf(t) values of each group comparable to coeval magmatic rocks in the nearby South China Block. This suggests that the Yidun Terrane and South China were possibly connected at that time, with the latter being the main detrital provenance. In contrast, the five Paleozoic samples have markedly different detrital zircon age spectra at ca. 2600 – 2300 Ma, 1100 – 900 Ma, 900 – 740 Ma, and 690 – 480 Ma, which were interpreted to have derived from Pan-African and Grenville-age provinces in the East Gondwana, as well as the South China Block and Songpan-Ganze Terrane. Such major provenance change suggests that after prolonged isolation in the Proto-Tethys, the Yidun Terrane began to collide with the East Gondwana in the early Paleozoic. Integrated with published works, we consider that the Yidun Terrane has close tectonic link with the Yangtze Block, and that it was located on the northeastern margin of the India Plate during the early Paleozoic.

opencc-by-4.0Sep 2021View details →

zenodo20/100

Supporting Information of the manuscript "Controls of sedimentary-diagenetic evolution on rock physics properties in Precambrian-Lower Paleozoic ancient carbonate reservoirs"

Open the record for dataset details and reuse information.

opencc-by-4.0Aug 2024View details →

zenodo8/100

New paleomagnetic results of the Upper Cretaceous to Lower Eocene sedimentary rocks from the Xigaze forearc basin and their tectonic implications

This is a Supplementary Information for a manuscript submitted to JGR: Solid Earth entitled "New paleomagnetic results of the Upper Cretaceous to Lower Eocene sedimentary rocks from the Xigaze forearc basin and their tectonic implications".

restrictedOct 2021View details →

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